Erica's Weather Blog

Cold weather experiment: frozen T-shirt

9:03 PM, Jan 7, 2014

When the weather's this cold, it gives First Alert meteorologist Erica Grow a chance to have a little bit of fun with it! You can do this one at home, too. 


Cold weather experiment: soda slushie

6:13 PM, Jan 7, 2014

When the weather's this cold, it gives First Alert meteorologist Erica Grow a chance to have a little bit of fun with it! You can do this one at home, too. 

Record cold and the Polar Vortex

5:39 PM, Jan 7, 2014

The Polar Vortex is always present in the Arctic, but we're feeling it right now in the DC Metro area.

Alberta Clippers: a quick cold burst for DC

3:52 PM, Dec 18, 2013

The Alberta Clipper is a type of storm system that sometimes affects the DC Metro area. They don't have a lot of moisture with them, but they still can pack a punch.

Yellow Alert vs. Red Alert Days

11:42 AM, Dec 6, 2013

What's the difference between a Yellow and Red Alert in the WUSA9 First Alert Weather Center? Read this to find out.

2013: A Weak Year for Bad Weather (Part 2: tornadoes)

3:38 PM, Nov 13, 2013

In the 2nd part of this series on our lack of bad weather, we're looking for the reason behind the low number of tornadoes in 2013. 

2013: A Weak Year for Bad Weather (Part 1: Hurricanes)

4:48 PM, Nov 5, 2013

The 2013 tropical season is the weakest in more than 30 years. The 12 named storms is about average, but there were only two hurricanes, and neither of them became major hurricanes. 

Tonight's freeze warning, explained

8:39 PM, Oct 25, 2013

EarthEcho brings STEM education to life

4:21 PM, Oct 22, 2013

Philippe Cousteau's EarthEcho Expedition program launched this month, with rave reviews from science teachers, and their students. 

Hurricane season continues to be weak

1:50 PM, Oct 14, 2013

Understanding the new findings on climate change

4:19 PM, Oct 1, 2013

The Intergovernmental Panel on Climate Change issued its full report on Monday, with their updated assessments. The conclusion is the same, however, that humans are impacting climate change.

DC air is getting cleaner!

4:29 PM, Sep 30, 2013

The air quality in the DC Metro has greatly improved in the past 10 years. The summer of 2013 included only four days of Code Orange air quality, and there were zero days of Code Red air quality.

The fall version of the marine layer

3:16 PM, Sep 27, 2013

The marine layer came back in a big way this week! This article explains why and how it happens.

The Omega block: Feast or famine

1:45 PM, Sep 25, 2013

This weekend's rain

5:41 PM, Sep 20, 2013

A cold front is on the way, due to bring us some rain on Saturday. Will we dry out in time for Sunday's football games and other outdoor fun?


Playing precip catch-up, once again

3:36 PM, Sep 19, 2013

After an unusually wet summer, we are actually doing well for precipitation in the DC Metro area. However, we're about to fall behind again as we enter the autumn season.


Humberto... Stunningly close to a record

4:29 PM, Sep 11, 2013

Humberto officially became a hurricane earlier this morning, just falling short of a new record for the latest hurricane development in the Atlantic Basin during the satellite era. 

Is the tornado risk really growing in the USA?

4:11 PM, Sep 10, 2013

Are tornadoes becoming more frequent, or is it just because we're observing more of them today, via eyewitness account and radar, than we did decades ago?

September Weather: High and Dry?

5:11 PM, Sep 3, 2013

Now that the kids are back in school, our weather pattern is turning much more pleasant. The long-range forecast looks sunnier and drier than that soggy summer we just endured.

The 2013 hurricane season: slow, so far

2:01 PM, Aug 29, 2013

The tropical season has been relatively weak so far, but we're just entering the normal peak of activity in early September. 

Summer 2013: Where's the heat?

4:46 PM, Aug 28, 2013

The summer of 2013 hasn't been too rough! So, who in the United States has been sweltering through the heat?

National Weather Service's new supercomputer

1:00 PM, Aug 3, 2013

The National Weather Service's new supercomputer will drastically improve the forecasting ability of the GFS, or Global Forecast System model by the summer of 2015. 

Last night's rain could have been a lot worse

11:04 AM, Jul 29, 2013

Last night, heavy rain moved through the Philadelphia area. We are lucky that this "bulls-eye" of rain didn't fall here in DC!

Some DC spots are too hot to handle

9:33 AM, Jul 19, 2013

We know it's hot outside. But what about your favorite park bench, or the sidewalk in your neighborhood? These might be too hot to handle in this sunny heat wave.

Decoding Severe Weather Jargon

5:47 PM, Jun 27, 2013

Watch, Warning, Slight Risk... what do they mean? Understanding these terms will make you better prepared for severe weather. 

Weather Maps

LOCAL DOPPLER RADAR

LOCAL FORECAST

METRO ZONE WEATHER

REGIONAL WEATHER

EASTERN WEATHER

NATIONAL WEATHER

SEVERE WEATHER

Weather Cams
Topper Shutt Weather Blog
Howard Bernstein Weather Blog
Erica Grow Weather Blog
Weather Photos

Meteorologist Erica Grow

Erica Grow
Meteorologist Erica Grow joined the W*USA Weather Team in September 2012. You can watch her forecasts every Saturday and Sunday evening on 9NEWS NOW. More>>
Get automated phone alerts when severe weather is in your area. Sign up for the WUSA9 First Alert Weather Call.